package com.sky.mapper;

import com.sky.dto.ShoppingCartDTO;
import com.sky.entity.ShoppingCart;
import com.sky.entity.User;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {

    /*
    * 根据用户id，商品id查询购物车
     */
    List<ShoppingCart> selectByUserIdAndGoodsId(ShoppingCart shoppingCart);

    /*
    * 添加购物车
     */
    @Insert("insert into shopping_cart(name, user_id, dish_id, setmeal_id, dish_flavor ,number, amount, image," +
            "create_time) values(#{name}, #{userId}, #{dishId}, #{setmealId}, #{dishFlavor}, #{number}, #{amount}," +
            " #{image}, #{createTime})")
    void insert(ShoppingCart shoppingCart);

    /*
    * 更新购物车
     */
    @Update("update shopping_cart set number = #{number} where id = #{id}")
    void updateNumber(ShoppingCart shoppingCart);


    @Delete("delete from shopping_cart where user_id = #{userId}")
    void deleteByUserId(Long userId);

    @Delete("delete from shopping_cart where id = #{id}")
    void deleteById(Long id);

    void insertBatch(List<ShoppingCart> shoppingCarts);
}
